Skin exposed to strong sunlight should be protected by clothing or sun creams. Radiation includes emanation of any portion of the electromagnetic spectrum, plus it includes the release of particles. If a radioactive material gets inside a persons body, then she or he will receive internal dose. Sludge, drilling mud, and pipe scales are examples of materials that often contain elevated levels of NORM, and the radioactive materials may be moved from site to site as equipment and materials are reused. Polonium-218 and polonium-214, in particular, emit highly energetic alpha particles. A source of non-ionizing radiation in healthcare is a laser. A common example is diagnostic x-rays, used, for example, to evaluate a broken bone. That largely depends on the type of phone you have. Customized lead (or lead equivalent) aprons are available for a wide range of occupational settings and job tasks. There are many common uses of ionizing radiation in manufacturing and construction. So if 2,000 people had a chest CT scan, one of them would be expected to develop cancer from the scan. These accidents are rare and typically result from failure to follow safety procedures. External exposure to radiation sources, machines containing radiation sources, or radioactive materials is minimized once the source or material is appropriately shielded or once the person leaves the radiation field. Water treatment facilities may have potential for worker exposure to TENORM from radium scale and sludge contamination in wastes and filters. The direct intake of radioactive materials into . There are two main types of radiation: ionizing and non-ionizing. Physical hazards include exposure to slips, trips, falls, electricity, noise, vibration, radiation, heat, cold and fire. endobj Some isotopes also pose an external radiation hazard (e.g. 1. Skin protection is also likely necessary for the hands, arms and neck in the form of gloves, sleeves, and a collar. The produced portable EIT system is described, and examples of results of its use for pulp suspension flow characterisation are reported and discussed. 6O-:CM. However, any sealed source, regardless of which isotope is used, has the potential to be a hazard if it leaks, so each source is checked for leakage at least every 6 months (unless the source is in storage). 0000001361 00000 n Ultraviolet radiation (UV)occurs with sunlight and with electric arc welding. In larger organizations, the control of radiation hazards is the responsibility of specialists known as health physicists or, sometimes, health chemists. Classes 1, 1M, 2, and 2M are relatively low hazards and only emit light in the visible band. These usually contain 8 to 15 mCi of Ni-63. Radiation occurs when energy is emitted from a source and travels through the environment to a destination. Fertilizer manufacturing facilities may have potential for worker exposure to TENORM from uranium, thorium, radium (Ra-226), or potassium (K-40) associated with fertilizer production, along with TENORM concentrations in wastes, filters, products, or metal piping scales. Geothermal energy production, including brine residuals and scale that may contain radium (Ra-226), uranium (U-238), or thorium (Th-232). Prominent national examples include the Image Wisely campaign and the pediatric initiative, Image Gently. ;#2R 8n@8: r$ H4X!,9@9::3C+006 x9PnN 61It\K1P$H-{5MAVSQ6}4Z52[/:7) BUV#bp g{Y$&_vZ1;Q#a:@b*R8@4(.FcH5lcn-;U; ".j;04Mc@A7VXNy_S!6c Common electromagnetic fields include work processes such as radiofrequency heating and welding, household electrical wiring and appliances; electrical motors; computer screens; telecommunications; transport and distribution of electricity, broadcasting, and security detection devices. See the Standards page for more information about OSHA and NRC standards. 0000001792 00000 n NRC and its Agreement States have authority over these devices. The annual audit, a required condition of your license, is performed annually by the company RSO to check the effectiveness of the radiation safety program. Do not eat, drink, smoke, take medicine, or chew gum in areas where radioactive materials are used or stored, radiation areas, high radiation areas, or airborne radioactivity areas. The hazards are categorised as either stochastic or non-stochastic. 97, Measurement of Radon and Radon Daughters in Air, describes updated measurement techniques appropriate for assessing radon. alpha particles emitted from the radioactive decay of uranium. RECOGNITION OF IONIZING RADIATION HAZARDS Ionizing radiation is radiation, which interacts with matter to form ions; high-energy electromagnetic radiation and particle radiation are capable of producing ions in their passage through matter. As with the previous Noise and Vibration Regulations, it contains provisions on risk assessment, control of exposure, health surveillance and information, instruction, and training. This guidance recommended developing a site-specific TENORM radiation protection program to protect disposal facility workers during receipt and, if applicable, waste disposal. Radiation protection sets examples for other safety disciplines in two unique respects: First, there is the assumption that any increased level of radiation above natural background will carry some risk of harm to health. These are more hazardous than classes 1 and 2; a laser safety officer appointment is recommended. Typical rules include enclosing the whole microwave system in a metal surround and using an interlocking device that will not allow the system to operate unless the door is closed. The FDA regulations for irradiation in the Production, Processing and Handling of Food (21 CFR 179) do not include requirements to protect workers from ionizing radiation exposure. By comparison, the average person in the U.S. is exposed to about 3 mSv of radiation each year from natural sources, such as radon gas and cosmic rays. Nonetheless, absorption of ionizing radiation energy by body tissues causes changes to the chemical makeup of living cells. A Class 4 laser can burn the skin and cause permanent eye damage due to direct, diffuse or indirect exposure to the beam. For information on screening levels for the clearance of potentially contaminated items or materials, see ANSI/HPS N13.12, Surface and Volume Radioactivity Standards for Clearance. These may contain large neutron sources (50 mCi of Am-241/Be) and gamma sources (10 mCi Cs-137). Radiotherapy (also called radiation therapy) involves the use of high-energy ionizing radiation to kill cancer cells and shrink tumors. In 1999, the National Research Council's Committee on Health Risks of Exposure to Radon (Biological Effects of Ionizing Radiation (BEIR) VI) provided a summary of scientific data on indoor radon and concluded that exposure to radon in homes is expected to be a cause of lung cancer. Employers can reduce such hazards by training veterinary workers on appropriate animal handling techniques and proper pain control, sedation, and anesthesia for animals. Alpha particles are emitted from the nuclei of some radioactive atoms as they decay. The badge contains a photographic film developed after the interval, and an estimate of radiation exposure is made. Just as moving a short distance closer to or farther from a fireplace causes a large change in how warm you feel; keeping just a few feet away from where someone is handling radioactive material will almost eliminate your exposure. X-ray fluorescence (XRF), another technique involving ionizing radiation, is used to inspect paint for the presence and quantity of lead. 1 0 obj Specialists in the field best perform such surveys, as interpreting the survey results requires considerable technical knowledge. Television sets that contain cathode ray tubes can generate low-level x-rays. The most dangerous form of skin cancer, malignant melanoma, has increased by over 40% over the last ten years, making it cancer with the fastest rising number of cases in the UK. Indoor areas with high radon concentrations can be successfully remediated by closing holes (e.g., around sump pumps, etc.) The Regulations are based on the limit values incorporated in the guidelines issued by the International Commission on Non-Ionising Radiation Protection (ICNIRP). Animals play key roles in various workplaces, from service animals providing necessary How Much Radiation Do You Get From CT Scans? When inhaled, these particles deposit in the lungs and deliver a radiation dose to the lung tissue. The two most common measures of radiation are the Becquerel (Bq), which measures the activity of a radioactive substance per second, and the Sievert (Sv), which measures the biological effects of the radiation normally measured in milliSieverts (mSv). With growing concern following the rise in skin cancers, the HSE has suggested the following hierarchy of controls for outdoor working: UV radiation has beneficial effects, such as accumulating vitamin D and strengthening bones. Natural radiation comes from many naturally occurring radioactive materials found in soil, water, air and in the body. %PDF-1.2 % D 9c!\2CFB@cG@f!1/Q\6h5H$SLaDTFx7B 4^Fl0 ECw For example, scientists use particle accelerators to study the properties of subatomic particles. Alpha radiation is used in smoke detectors. The Radiation Safety Officer is responsible for managing the radiation safety program subject to the approval of the Administrative Panel on Radiological Safety, and is authorized to take whatever steps are necessary to control and mitigate hazards in emergency situations. The International Electrotechnical Commission (IEC) and the American National Standards Institute (ANSI) have defined seven classes of laser (1, 1M, 2, 2M, 3R, 3B and 4) in ascending size of power output. However, they cannot be turned off like an X-ray device because the radioactive material inside the device always produces gamma rays. Farm accidents could have been prevented yearly, Read More 11 Farm Safety Tips Understand Hazards & RisksContinue, Are you aware of the potential dangers when working with power tools? Wearing lead aprons can reduce a worker's radiation dose. Ionising radiation attacks the bodys cells by producing chemical changes in the cell DNA by ionising it (thus producing free radicals), which leads to abnormal cell growth. An X-ray tube does not contain radioactive material, thus poses no ionizing radiation hazard when unplugged or turned off. It is a problem for firefighters and those working in foundries or near furnaces. x\mOHO{ _j%afr9`nOs:kCf_U $4 ^zaU'~p6;4q/w!O_Gq8Sog7;s/7pJ'Dz .swDaK4I|A:|;n"% Ionizing radiation has enough energy to remove electrons from atoms, which can damage cells and lead to cancer. 0000001488 00000 n For example, all missiles of one variety are susceptible (HERO 1 limits), while another missile has both susceptible and safe variants (with no RADHAZ limits). If you have 10 CT scans over your lifetime, your chance of developing cancer from the scans is about 1 in 200. Background radiation levels are much higher worldwide 260 mSv have been recorded in Iran. Such Class 4 lasers can ignite combustible materials and are a fire risk. . 2 0 obj Thus, the Becquerel (Bq) measures the amount of radiation in a given environment, and the milliSievert (mSv) measures the ionising radiation dose received by a person. 'Medical Disclaimer: The information on this site . The Federal Communications Commission (FCC) requires that all cell phones sold in the U.S. have a SAR level of 1.6 watts per kilogram (W/kg) or less. Their main duty is to ensure that work is carried out without hazard to the health of the people involved. All of these types of radiation are caused by the activity of unstable atoms. electromagnetic radiation from your cell phone. The construction standard for ionizing radiation (29 CFR 1926.53) incorporates by reference the provisions of the general industry standard (29 CFR 1910.1096), in addition to requiring a competent person to perform activities involving the use of radioactive materials or X-rays (see 29 CFR 1926.53(b)). It is a form of electromagnetic radiation, like X-rays. Closed X-ray systems are used, for example, for airport baggage security screening and cargo inspection of trucks crossing international borders. They may also be exposed to TENORM-contaminated piping and metal in scrap metal recycling facilities. The NRC and its Agreement States are responsible for ensuring that radioactive materials (e.g., Cobalt-60) are used safely within irradiation facilities. This will help to keep the phone away from your head and body. Beta radiation is a stream of tiny charged particles that can be stopped by a thin layer of plastic, glass, wood, metal and most other common materials. Its believed that, Read More Different Types Of Hard Hat Color Codes & Their MeaningsContinue, Ergonomic hazards often overlooked and ignored, can be found in almost every workplace today. There are multiple methods available for determining radon concentrations. Make sure all wounds or cuts (including scratches and scabs) are protected from potential radiation contamination sources. Theres no easy answer to this question. The guiding principle of radiation safety is "ALARA". Ionizing radiation is also similar to other forms of radiation in that the intensity of the radiation exposure decreases very quickly as you move away from the radiation source. Ionizing radiation has many beneficial applications, including uses . Because gamma ray industrial radiography devices are smaller than the X-ray devices, they are useful for checking inside pipes, ships, and other small spaces. X-ray equipment is used in various occupational settings, including security operations, healthcare, manufacturing and construction, and food and kindred products processing. Non-ionising radiationincludes ultraviolet, visible light (lasers that focus or concentrate visible light), infrared and microwave radiation. Unlike some other types of energy, such as heat (infrared radiation) or visible light, the human body cannot sense exposure to ionizing radiation. sound waves from your stereo. These machines are no longer used at U.S. airports, which now use non-ionizing millimeter wave units for passenger security screening. 0000013647 00000 n The main hazards associated with lasers are eye and skin burns, toxic fumes, electricity, and fire. The Ionising Radiations Regulations specify a range of precautions that must be taken, including the appointment of a Radiation Protection Supervisor as the competent person and a Radiation Protection Adviser. Some common examples of NORM are listed below: The uranium-238 decay series (naturally-occurring) produces alpha, beta, and gamma radiation (not shown). It has a . In July 2008, ISCORS published Guidance for Security Screening of Humans Using Ionizing Radiation (GSSHUIR), ISCORS Technical Report 2008-1, which includes basic information on how to set up an appropriate radiation safety program. Examples of such hazardous light sources include: Electric, magnetic, and electromagnetic fields (EMFs) are a form of non-ionizing radiation that arises whenever electrical energy is used. endobj These include short-term measurements (e.g., 2 7 days) to determine any areas with high radon concentrations, and long-term measurement (e.g., 90 days or longer) to determine long-term radon concentrations. All lasers should carry information about their class and any precautions required. 0000001666 00000 n During stone cutting and polishing. Gamma rays are emitted from the nuclei of some radioactive atoms as they decay. Intense sources of artificial light in the workplace, particularly from UV radiation and powerful lasers, can harm the eyes and skin of workers and need to be properly managed. Ionising radiations can also occur naturally the best example is radon, a radioactive gas that occurs mainly at or near granite outcrops where there is a presence of uranium. [0kp"YP n*^vCE][!C4Q wD=D[FPH^m-N>!D%B}jlV*"sQtjlX[bqa High doses of radiation can cause Acute Radiation Syndrome (ARS) or Cutaneous Radiation Injuries (CRI). An impermeable membrane beneath the floor can be laid to prevent the gas from entering the building through the floor. Personal radiation exposure can be measured using a film badge, which the employee wears over a fixed time interval. Chronic exposure can lead to anemia, leukaemia and other forms of cancer. X-ray industrial radiography devices are powered by electricity. It comprises two protons and two neutrons bound together into a particle identical to a helium nucleus. <> It is also known that ionising radiation can have an adverse effect on the function of human reproductive organs and processes. ALARA Examples. Radiation is all around us, but it is not always dangerous. Some methods to control internal doses include: All efforts should be taken to avoid internal doses from contamination with radioactive materials. It has a high energy potential and an ability to penetrate, ionise and damage body tissue and organs. Consult with the Radiation Safety Officer at (650) 723-3201 for specific . Similar devices are available to measure radon levels. Beta radiation is more penetrating than alpha radiation, but not as much as gamma radiation. 0000013625 00000 n 0000013543 00000 n crack detection in welds). About half of the background radiation in the UK is caused by radon. Another use of ionizing radiation is to irradiate and kill biological agents sent through the mail and other delivery methods. Thats equivalent to about 70 x-rays. Because of the increasing use of special purpose particle accelerators, OSHA issued a Safety and Health Information Bulletin (SHIB) in 2009 to identify exposures to radiation hazards and other hazards (electrical hazards from high-voltage systems, arc-flash/blast hazards, and fires), and to provide information on the safe operation of these devices. (`d$jZP Examples include: A burning candle emits radiation in the form of heat and light. According to the Occupational Safety and Health Administration (OSHA), radioactive sources are found in a wide range of industrial settings. The type and thickness of material needed to make an effective barrier or shield around a source of ionizing radiation varies a great deal depending on the type of ionizing radiation. The person appointed, usually, an employee must be competent to supervise the arrangements in place and have received relevant training. Exposure to hazardous concentrations of radon in a structure controlled by an employer (see, Exposure to radon when working in trenches or excavations (see. Non-ionizing radiation does not have enough energy to cause this damage, but it can still be harmful if it is intense enough or if the body absorbs it over a long period. The U.S. Environmental Protection Agency (EPA) Find a Radon Test Kit or Measurement and Mitigation Professional webpage also provides guidance on radon mitigation. Sn2q@O3.~-%qv v_g (7" "$s B" Possible late effects; possible chromosomal damage. 0000013606 00000 n This extremely low amount of radiation is equivalent to about 1/10th of a chest X-ray. i~w8C!|q^;XAllcFgI3zZlJp5+vZ [JR=BOFL'MQ]92:y3!\#JN~`~HfgG4tL!{!`16M| While, Read More 10 HVAC Safety Hazards and Control MeasuresContinue, Your email address will not be published. In December 2017, the Radiation Task Force of the Association of State and Territorial Solid Waste Management Officials (ASTSWMO) issued Waste Generation and Disposal: Awareness, Management, and Disposal Guidance for Solid Waste Containing Technologically Enhanced Naturally Occurring Radioactive Material (TENORM) to increase awareness regarding TENORM waste generation, as well as the regulatory and radiological complexities surrounding appropriate and protective TENORM waste management methods. Those who are particularly at risk have: Employers must be aware of their employees risks when working outside without adequate sun protection. guidance concerning the radiological safety and other hazards associated with a nuclear weapon accident. Radiation can harm living things but can also be used for beneficial purposes, such as in medical imaging and cancer treatment. The gas enters buildings normally from the substructure through cracks in flooring or around service inlets. Internal dose is received when a radioactive material enters the body through inhalation (breathing in), ingestion (swallowing), absorption through the skin or an open wound, or injection. These currents can stimulate nerves and muscles or cause other biological effects such as nausea if sufficiently large. Direct eye contact must be avoided in classes 3R, 3B and 4. electromagnetic radiation from your cell phone. 0000001119 00000 n % 3. All matter consists of atoms, a nucleus containing protons and neutrons, and orbiting electrons. For example, a standard chest CT scan exposes you to about 7 mSv of radiation. Lasers produce an intense, highly directional beam of light. Alpha. The first two sections on this page describe two sources of ionizing radiation: naturally occurring radioactive material (NORM) and technologically enhanced naturally occurring radioactive material (TENORM). bb)^M v[f7LY^T " lq"YRA microwaves from a microwave oven. The EMF Directive covers a frequency spectrum from 0 to 300 GHz, including static magnetic fields and low-frequency electric and magnetic fields, through radio frequency and microwave frequencies. For more information on controlling ionizing radiation hazards and preventing dose, see the Control & Prevention page. Other X-ray systems, such as backscatter X-ray systems that use very low levels of X-rays, are used for security screening of people (e.g., at some prisons, for entry into some public buildings). The size of the dose the higher the dose then, the more profound will be the effect; The area or extent of the exposure of the body the effects may be far less severe if only a part of the body (e.g. My experience ranges from construction sites to oil refineries, and I have seen first-hand the importance of safety in protecting workers and customers alike. The only way to "turn off" gamma rays emitted from an industrial radiography device is to interrupt the beam by covering the opening with a heavy metal plate. 0000000883 00000 n And, if youre really concerned, consider switching to a dumb phone that doesnt emit as much radiation. D `.XZ28P.Q'1`bIb " endstream endobj 26 0 obj 3387 endobj 27 0 obj << /Length 26 0 R /Filter /LZWDecode >> stream Carbon-14 (C-14) is taken up by all plants and animals and can be measured by scientists to determine the age of organic materials through "carbon dating.". Ionizing radiation is routinely used in medicine. The health effects of ionising radiation may be summarised into two groups somatic results, which refer to cell damage in the person exposed to the radiation dose and genetic influences, which refer to the damage done to any future children of the irradiated person. While the FCC limit is 1.6 W/kg, some phones emit more than that. For example, many precision measurement and nondestructive testing applications use radiography to inspect welds, measure the thickness of microelectronic wafers, develop polymers in the rubber and plastics industries, and measure and inspect the quantity and quality of goods produced during industrial quality control. Other examples of TENORM in manufacturing or processing facilities arise from increased concentrations of NORM materials in filters and the solid sludge if large quantities of water containing naturally occurring radionuclides (e.g., Ra-226, Ra-228) are used in some manufacturing processes, such as paper and pulp mills, or from water treatment systems used to supply drinking water. Computer Monitors Computer monitors that contain cathode ray tubes also generate low-level x-rays. If you are concerned about your radiation exposure, talk to your doctor or a health physicist. This one is used to measure bone density: Analytical x-ray machine, used to analyze the molecular or crystalline structure of materials: X-ray machines only produce ionizing radiation when they are energized. They are also extensively used in surgery for cataract treatment and the sealing of blood vessels. Gamma radiation is used in PET scans. visible light from a candle. Radiation can also be used for research purposes. However, most experts agree that a certain amount of radiation is safe for most people. NORM is, by definition, naturally occurring (not man-made and not disturbed as a result of human activities). The Exposure Scenarios section on this page provides information about external exposure and internal exposure to sources of ionizing radiation. The main nonstochastic effects include radiation burns, sickness, cataracts and damage to unborn children. Workers in ceramics manufacturing facilities may be exposed to zircon or uranium in wastes and molds. 0000013689 00000 n Time Each has unique properties and uses. This latter treatment usually is only suitable for new buildings but does cost less than 10% of the cost of a sump and has no running costs. The output is directly related to the chemical composition of the medium used within the particular laser. Hc```bVN``0pT0LoxDE%hdwc `g`pH$XDqfF%,%000sQs`8 v ? endstream endobj 39 0 obj 131 endobj 20 0 obj << /Type /Page /Parent 15 0 R /Resources << /Font << /F0 21 0 R /F1 22 0 R /F2 28 0 R >> /XObject << /im1 37 0 R >> /ProcSet 32 0 R >> /Contents 23 0 R /MediaBox [ 0 0 612 792 ] /CropBox [ 0 0 612 792 ] /Rotate 0 >> endobj 21 0 obj << /Type /Font /Subtype /TrueType /Name /F0 /BaseFont /TimesNewRoman,Bold /Encoding /WinAnsiEncoding >> endobj 22 0 obj << /Type /Font /Subtype /TrueType /Name /F1 /BaseFont /TimesNewRoman /Encoding /WinAnsiEncoding >> endobj 23 0 obj [ 25 0 R 27 0 R ] endobj 24 0 obj 50 endobj 25 0 obj << /Length 24 0 R /Filter /LZWDecode >> stream 1Eq-YfW-E) RC$+FD^'6y^},2H|'L'Lc[6^yM hys[-3YR BKe Safety is a priority for any business, large or small. 18 0 obj << /Linearized 1 /O 20 /H [ 883 236 ] /L 120434 /E 44344 /N 3 /T 119956 >> endobj xref 18 22 0000000016 00000 n 2. P-32, Cs-137), and so shielding must be provided while working with this material to protect against exposure to the radiation field. Ionizing radiation is a type of energy released by atoms in the form of electromagnetic waves or particles. The Regulations aim to ensure that standards are set so that all workers are protected from harm arising from exposure to hazardous sources of artificial light. In other cases, cancer may be resistant to radiation, meaning it is not killed by the therapy. 4 0 obj What is radioactive waste and what do we do with it? o26*j+LR!(K|8N#9N`@. That X-ray image is transmitted to a monitor. When gamma rays are used in industrial radiography, the ionizing radiation comes from radioactive material inside the device. Radon is not generally a problem unless it can accumulate in confined spaces such as basements, cellars or lift shafts. |05qAgpp8o0/ 8'?0O_m^no>Q;0D7Z8`}&^YZzx}B4~! 2>F$a} iBBD>_bgK[Rnco-AAoF`Q |\;L>?Gs$wYas3:rVNXf9 @U8HW6AL72/`oL-||e9d~|M w8$ @;nBal[i*tVoQP8^jdsGQFAgd9[j5,, Natural background radiation comes from two primary sources: cosmic radiation and terrestrial sources. Note that a worker can be exposed to an external radiation field and receive an external dose without directly coming into contact and being contaminated with the radioactive material. Ionising radiation is emitted from radioactive materials, either directly ionising alpha and beta particles or indirectly ionising X-rays, gamma rays, or neutrons. There are a few reasons why radiation therapy might not be effective. Where UV interlocutors are used, generally in kitchens, to control flying insects, the correct emitting labels must be fitted and not ones that, for example, are used to sterilise surgical instruments, as has happened on one occasion. You can also text instead of talk whenever possible. Medical imaging includes many different technologies, of which selected examples are listed below: A portable fluoroscopy machine can be used to guide cardiology, neurology, and other procedures. X-rays and Gamma rays are very similar to sunlight in that they are not particles, just electromagnetic waves. Examples after a nuclear detonation: In areas where the Radiation Hazard Category is 5, sheltering in place can help maintain a Category 2 or 3 until instructed to evacuate. If you are considering radiation therapy, talk to your doctor about the potential risks and benefits. 0000013666 00000 n The SSRCR Part N: Regulation and Licensing of Technologically Enhanced Naturally Occurring Radioactive Material (TENORM) includes protection of workers during operations through compliance with the occupational dose in standards for radiation protection in Parts D and J of SSRCR. Lastly, healthy tissue in the area being treated can also be damaged by radiation, which can cause side effects. If youre concerned about the amount of radiation your phone emits, there are a few things you can do. Many people assume using a nail, Read More How Do Nail Gun Injuries HappenContinue, The hard hat has been around since before America was established as an independent country. Radiation is a type of energy that travels through the air and can be absorbed by living things. The amount of radiation youre exposed to during a CT scan varies depending on the type of scan, the machine, and the settings used. Dental imaging uses special dental X-ray machines that produce either digital or film images and is typically performed in dental offices. Radiation therapy might not be effective ) and gamma sources ( 50 mCi Ni-63! The phone away from your cell phone imaging and cancer treatment properties and uses settings and job tasks talk your! Changes to the health of the medium used within the particular laser & Prevention page the of. To about 1/10th of a chest CT scan exposes you to about 1/10th of a chest.. Experts agree that a certain amount of radiation are caused by radon recommended developing a site-specific TENORM radiation (.! ` 16M| while, Read more 10 HVAC safety hazards and only emit light in the visible.. ( XRF ), radioactive sources are found in a wide range industrial... 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